Intel Core i9-9940X Drivers & Specs 2025

Core i9-9940X is a desktop processor from Intel released on 19 October 2018, and it is in active production status now. It belongs to Core i9 family and has a Skylake-X architecture. This processor is built on Intel Socket 2066, and uses Gen 3 PCI express connection. 14 nm process is used in production.

Processor has 14 cores and 28 threads, with the base frequency of 3.3 GHz. It has DDR4 Quad-channel memory support. As for the cache, it supports L1 64K (per core), L2 1MB (per core) and L3 19.25MB (shared).

Specifications

Vertical Segment: Desktop
Release date: 19 October 2018
Production status: Active
Generation: Core i9
Codename: Skylake-X
Socket: Intel Socket 2066
Total Cores: 14

Total Threads: 28
Frequency: 3.3 GHz
Turbo clock: up to 4.5 GHz
Cache L1: 64K (per core)
Cache L2: 1MB (per core)
Cache L3: 19.25MB (shared)
TDP: 165 W

Physical Specifications

Socket: Intel Socket 2066
Foundry: Intel
Process size: 14 nm

Transistors: unknown
Die size: unknown
Package: FC-LGA2066

Performance

Frequency: 3.3 GHz
Turbo clock: up to 4.5 GHz
Base clock: 100 MHz

Multiplier: 33.0x
Multiplier unlocked: Yes
TDP: 165 W

Architecture Details

Vertical Segment: Desktop
Production status: Active
Release date: 19 October 2018
Codename: Skylake-X
Generation: Core i9

Part: BX80673I99940XCD8067304175600SREZ5
Memory support: DDR4 Quad-channel
ECC memory: No
PCI Express: Gen 3

Cores

Total Cores: 14
Total Threads: 28

SMP # CPUs: 1
Integrated graphics: N/A

Cache

Cache L1: 64K (per core)
Cache L2: 1MB (per core)

Cache L3: 19.25MB (shared)

Notes

Notes: This processor comes with an unlocked BCLK multiplier, allowing users to set the multiplier value higher than shipped value, to facilitate better overclocking.

Features & Technologies

MMX
SSE
SSE2
SSE3
SSSE3
SSE4.2
AVX
AVX2
BMI1
BMI2
F16C
FMA3
CLMUL

EIST
Intel 64
XD bit
VT-x
VT-d
AES-NI
TSX
TXT
HTT
Boost 2.0
Boost 3.0
AVX-512

Drivers

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Benchmark & Performance

PassMark

51 28162 192570

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Gaming

To see if Intel Core i9-9940X is good for gaming, we checked what popular, new, and upcoming PC games will run on it:

Intel Core i9-9940X Processor